天黑以后txt下载

1、天黑以后txt下载 篇一：声光双控照明设计 摘 要 我花了两周时间设计了一种声光双控电路，在本设计中介绍了多种声光控路灯掌握器的组成、性能，适用范围及工作原理，给出各电路原理图及元件参数选择，节电效果非常明显，同时也大大削减了修理量、节约了资金，用法效果良好。白天光照好，不管过路者发出多大声音，都不会是灯泡发亮。夜晚光暗，电路的拾音器只要检测到有碎发声响，就会自动亮为行人照明，过几分钟后又自动熄灭，节能节电。 关键词: 声控电路；光控电路；延时电路；声音传感器；节能 ABSTRACT I spent two weeks time to design one kind of acousto-op

2、tics double to control the electric circuit, introduced in this design many kinds of acousto-optics controlled the street light controller the composition, the performance, the applicable scope and the principle of work, gave various electric circuits schematic diagram and the part parameter choice,

3、 the electricity saving effect are extremely obvious, simultaneously also greatly reduced the service quantity, saved the fund, the use effect has been good.The daylight is good, no matter passing by on the road makes the big sound, all cannot be the light bulb shines.Night the light is dark, so lon

4、g as the electric circuit acoustic pickup examines has sends the sound garrulously, can shine automatically for the pedestrian illuminates, after several minutes has also been automatic extinguishes, energy conservation electricity saving. Kedwords: the sound control circuit; a light control circuit

5、; a delay circuit; a sound sensor; energy saving 目 录 摘 要. I ABSTRACT . II 第1章 绪论 . 1 1.1 课题讨论的目的和意义 . 1 1.1.1 讨论的目的 . 1 1.1.2 讨论的意义 . 1 1.2 国内外概况 . 1 第2章 基本原理 . 3 第3章 设计流程 . 5 3.1 电源模块 . 5 3.1.1 电源电路的设计 . 5 3.1.2 电源电路的工作原理及相关参数的分析 . 6 3.1.3 电源电路的其他设计 . 8 3.2 信号收集模块 . 8 3.2.1 光信号收集电路的设计 . 8 3.2.2 光信号电路的工作原理 . 9 3.2.3 光信号电路相关参数的分析 . 9 3.3 声音信号收集电路的设计 . 10 3.4 信号处理模块 . 12 3.4.1 芯片TC4081BP的介绍 . 12 3.4.2芯片TC4081BP的工作原理 . 12 3.5 延时